permafrost

per·ma·frost  (pûrm-frôst, -frst)

n.

Permanently frozen subsoil, occurring throughout the Polar Regions and locally in perennially frigid areas.

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[perma(nent) + frost.]

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permafrost [ˈpɜːməˌfrɒst]

n

(Earth Sciences / Physical Geography) ground that is permanently frozen, often to great depths, the surface sometimes thawing in the summer

[from perma(nent) + frost]

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permafrost  (pûrm-frôst)

A layer of soil or bedrock that has been continuously frozen for at least two years and as long as tens of thousands of years. Permafrost can reach depths of up to 1,524 m (4,999 ft). It is found throughout most of the polar regions and underlies about one fifth of the Earth's land surface.

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Permanently frozen subsoil.

Thesaurus

Noun

1.

permafrost - ground that is permanently frozen     land, soil, ground - material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use); "the land had never been plowed"; "good agricultural soil"

Translations

permafrost [ˈpɜːməfrɒst] N → permagel m

permafrost

n → Dauerfrostboden m

permafrost [ˈpɜːməˌfrɒst] n → permafrost m inv